I love that you made a severance game. The rules make sense, but I think the shift having a limited time detracts from the experience. In the show Macrodata Refinement is shown to be sort of monotonous and slow. This game makes you frantically look for the numbers. I think if you were to take some inspiration from the swap-three genre so players can make clump like-numbers together before refining it could be a much more accurate experience.
That said, I really do like the concept. I just think it could be refined a bit (haha get it?).
Oh one more thing: the warning/shaking shader is far too intense. An intensity slider in a settings menu would definitely benefit this game.